Tatami (Japanese armour)
Tatami (畳具足), or tatami gusoku (from 畳む tatamu, "to fold", and gusoku, "full suit of armour"), was a type of lightweight portable folding Japanese armour worn during the feudal era of Japan by the samurai class and their foot soldiers (ashigaru). The Tatami dō (a foldable cuirass) or the tatami katabira (an armoured jacket) were the main components of a full suit of tatami armour.